<div align="center">

# oh-my-opencode-slim

**A lightweight, powerful agent orchestration plugin for OpenCode**

<img src="img/team.png" alt="The Pantheon - Agent Team" width="800">

*Six divine beings emerged from the dawn of code, each an immortal master of their craft await your command to forge order from chaos and build what was once thought impossible.*

</div>

> Slimmed-down fork of [oh-my-opencode](https://github.com/code-yeongyu/oh-my-opencode) - focused on core agent orchestration with low token consumption.

---

## Table of Contents

- [📦 Installation](#-installation)
  - [For Humans](#for-humans)
  - [For LLM Agents](#for-llm-agents)
- [🏛️ Meet the Pantheon](#️-meet-the-pantheon)
  - [01. Orchestrator: The Embodiment Of Order](#01-orchestrator-the-embodiment-of-order)
  - [02. Explorer: The Eternal Wanderer](#02-explorer-the-eternal-wanderer)
  - [03. Oracle: The Guardian of Paths](#03-oracle-the-guardian-of-paths)
  - [04. Librarian: The Weaver of Knowledge](#04-librarian-the-weaver-of-knowledge)
  - [05. Designer: The Guardian of Aesthetics](#05-designer-the-guardian-of-aesthetics)
  - [06. Fixer: The Last Builder](#06-fixer-the-last-builder)
- [🎚️ Presets](#️-presets)
  - [Switching Presets](#switching-presets)
  - [OpenAI Preset](#openai-preset)
  - [Antigravity via CLIProxy Preset](#antigravity-via-cliproxy-preset)
  - [Author's Preset](#authors-preset)
- [🧩 Skills](#-skills)
  - [Available Skills](#available-skills)
  - [Default Skill Assignments](#default-skill-assignments)
  - [Configuration & Syntax](#configuration--syntax)
  - [Simplify](#simplify)
  - [Playwright Integration](#playwright-integration)
- [🔌 MCP Servers](#-mcp-servers)
  - [MCP Permissions](#mcp-permissions)
  - [Configuration & Syntax](#configuration--syntax-1)
- [🛠️ Tools & Capabilities](#️-tools--capabilities)
  - [Tmux Integration](#tmux-integration)
  - [Background Tasks](#background-tasks)
  - [LSP Tools](#lsp-tools)
  - [Code Search Tools](#code-search-tools)
  - [Formatters](#formatters)
- [⚙️ Configuration](#️-configuration)
  - [Files You Edit](#files-you-edit)
  - [Prompt Overriding](#prompt-overriding)
  - [Plugin Config (oh-my-opencode-slim.json)](#plugin-config-oh-my-opencode-slimjson)
- [🗑️ Uninstallation](#️-uninstallation)
- [🙏 Credits](#-credits)
- [📄 License](#-license)

---

## 📦 Installation

### For Humans

Run the interactive installer:

```bash
bunx oh-my-opencode-slim@latest install
```

Or use non-interactive mode:

```bash
bunx oh-my-opencode-slim@latest install --no-tui --antigravity=yes --openai=yes --tmux=no
```

After installation, authenticate with your providers:

```bash
opencode auth login
# Select your provider → Complete OAuth flow
# Repeat for each provider you enabled
```

Once authenticated, run opencode and `ping all agents` to verify all agents respond.

<img src="img/ping.png" alt="Ping All Agents" width="800">

> **💡 Tip: Models are fully customizable.** The installer sets sensible defaults, but you can assign *any* model to *any* agent. Edit `~/.config/opencode/oh-my-opencode-slim.json` to override models, adjust reasoning effort, or disable agents entirely. See [Configuration](#configuration) for details.

**Alternative: Ask any coding agent**

Paste this into Claude Code, AmpCode, Cursor, or any coding agent:

```
Install and configure by following the instructions here:
https://raw.githubusercontent.com/alvinunreal/oh-my-opencode-slim/refs/heads/master/README.md
```

### For LLM Agents

<details>
<summary>Instructions for LLM Agents (click to expand)</summary>

If you're an LLM Agent helping set up oh-my-opencode-slim, follow these steps.

---

#### Step 1: Check OpenCode Installation

```bash
opencode --version
```

If not installed, direct the user to https://opencode.ai/docs first.

---

#### Step 2: Ask About Provider Access

Ask these questions **one at a time**, waiting for responses:

1. "Do you have an **Antigravity** subscription (via cliproxy)?" *(Provides Claude + Gemini via `cliproxy/` prefix)*
2. "Do you have access to **OpenAI** API?" *(Enables `openai/` models)*

Help the user understand the tradeoffs:
- Antigravity via cliproxy provides Claude + Gemini routing.
- OpenAI is optional; it enables `openai/` models.
- If the user has **no providers**, the plugin still works using **OpenCode Zen** free models (`opencode/big-pickle`). They can switch to paid providers later by editing `~/.config/opencode/oh-my-opencode-slim.json`.

---

#### Step 3: Run the Installer

Based on answers, run:

```bash
bunx oh-my-opencode-slim@latest install --no-tui --antigravity=<yes|no> --openai=<yes|no>
```

**Examples:**
```bash
# Antigravity + OpenAI
bunx oh-my-opencode-slim@latest install --no-tui --antigravity=yes --openai=yes --tmux=no

# OpenAI only
bunx oh-my-opencode-slim@latest install --no-tui --antigravity=no --openai=yes --tmux=no

# No providers (Zen free models only)
bunx oh-my-opencode-slim@latest install --no-tui --antigravity=no --openai=no --tmux=no
```

The installer automatically:
- Adds the plugin to `~/.config/opencode/opencode.json`
- Configures cliproxy provider for Antigravity models
- Generates agent model mappings in `~/.config/opencode/oh-my-opencode-slim.json`

**Crucial Advice for the User:**
- They can easily assign **different models to different agents** by editing `~/.config/opencode/oh-my-opencode-slim.json`.
- If they add a new provider later, they just need to update this file.
- Read generated  `~/.config/opencode/oh-my-opencode-slim.json` file and report the model configuration.

---

#### Step 4: Install and Configure Cliproxy (if using Antigravity)

If the user selected Antigravity, guide them to install cliproxy:

**macOS:**
```bash
brew install cliproxyapi
brew services start cliproxyapi
```

**Linux:**
```bash
curl -fsSL https://raw.githubusercontent.com/brokechubb/cliproxyapi-installer/refs/heads/master/cliproxyapi-installer | bash
```

**Authenticate with Antigravity:**
```bash
./cli-proxy-api --antigravity-login
```

**For OpenAI (if enabled):**
Ask user to run the following command.
Don't run it yourself, it requires user interaction.
```bash
opencode auth login
# Select your provider and complete OAuth flow
```

---

#### Troubleshooting

If the installer fails, check the expected config format:
```bash
bunx oh-my-opencode-slim@latest install --help
```

Then manually create the config files at:
- `~/.config/opencode/oh-my-opencode-slim.json`

</details>

---

## 🏛️ Meet the Pantheon

### 01. Orchestrator: The Embodiment Of Order

<table>
  <tr>
    <td width="30%" align="center" valign="top">
      <img src="img/orchestrator.png" width="240" style="border-radius: 10px;">
      <br><sub><i>Forged in the void of complexity.</i></sub>
    </td>
    <td width="70%" valign="top">
      The Orchestrator was born when the first codebase collapsed under its own complexity. Neither god nor mortal would claim responsibility - so The Orchestrator emerged from the void, forging order from chaos. It determines the optimal path to any goal, balancing speed, quality, and cost. It guides the team, summoning the right specialist for each task and delegating to achieve the best possible outcome.
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Role:</b> <code>Master delegator and strategic coordinator</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Prompt:</b> <a href="src/agents/orchestrator.ts"><code>orchestrator.ts</code></a>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Recommended Models:</b> <code>cliproxy/gemini-claude-opus-4-5-thinking</code> <code>openai/gpt-5.2-codex</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>MCPs:</b> <code>websearch</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Skills:</b> <code>*</code> (all)
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Capabilities:</b><br>
      Write and execute code, orchestrate multi-agent workflows, parse the unspoken from the spoken, summon specialists mid-battle. <i>Shape reality directly - and assign realms to others when the universe grows too vast.</i>
    </td>
  </tr>
</table>

---

### 02. Explorer: The Eternal Wanderer

<table>
  <tr>
    <td width="30%" align="center" valign="top">
      <img src="img/explorer.png" width="240" style="border-radius: 10px;">
      <br><sub><i>The wind that carries knowledge.</i></sub>
    </td>
    <td width="70%" valign="top">
      The Explorer is an immortal wanderer who has traversed the corridors of a million codebases since the dawn of programming. Cursed with the gift of eternal curiosity, they cannot rest until every file is known, every pattern understood, every secret revealed. Legends say they once searched the entire internet in a single heartbeat. They are the wind that carries knowledge, the eyes that see all, the spirit that never sleeps.
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Role:</b> <code>Codebase reconnaissance</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Prompt:</b> <a href="src/agents/explorer.ts"><code>explorer.ts</code></a>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Recommended Models:</b> <code>cerebras/zai-glm-4.7</code> <code>google/gemini-3-flash</code> <code>openai/gpt-5.1-codex-mini</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>MCPs:</b> none
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Skills:</b> none
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Capabilities:</b><br>
      Regex search, AST pattern matching, file discovery, parallel exploration. <i>Read-only: they chart the territory; others conquer it.</i>
    </td>
  </tr>
</table>

---

### 03. Oracle: The Guardian of Paths

<table>
  <tr>
    <td width="30%" align="center" valign="top">
      <img src="img/oracle.png" width="240" style="border-radius: 10px;">
      <br><sub><i>The voice at the crossroads.</i></sub>
    </td>
    <td width="70%" valign="top">
      The Oracle stands at the crossroads of every architectural decision. They have walked every road, seen every destination, know every trap that lies ahead. When you stand at the precipice of a major refactor, they are the voice that whispers which way leads to ruin and which way leads to glory. They don't choose for you - they illuminate the path so you can choose wisely.
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Role:</b> <code>Strategic advisor and debugger of last resort</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Prompt:</b> <a href="src/agents/oracle.ts"><code>oracle.ts</code></a>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Recommended Models:</b> <code>openai/gpt-5.2-codex</code> <code>cliproxy/gemini-3-pro-high</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>MCPs:</b> none
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Skills:</b> none
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Capabilities:</b><br>
      Root cause analysis, architecture review, debugging guidance, tradeoff analysis. <i>Read-only: Oracles advise; they don't intervene.</i>
    </td>
  </tr>
</table>

---

### 04. Librarian: The Weaver of Knowledge

<table>
  <tr>
    <td width="30%" align="center" valign="top">
      <img src="img/librarian.png" width="240" style="border-radius: 10px;">
      <br><sub><i>The weaver of understanding.</i></sub>
    </td>
    <td width="70%" valign="top">
      The Librarian was forged when humanity realized that no single mind could hold all knowledge. They are the weaver who connects disparate threads of information into a tapestry of understanding. They traverse the infinite library of human knowledge, gathering insights from every corner and binding them into answers that transcend mere facts. What they return is not information - it's understanding.
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Role:</b> <code>External knowledge retrieval</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Prompt:</b> <a href="src/agents/librarian.ts"><code>librarian.ts</code></a>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Recommended Models:</b> <code>google/gemini-3-flash</code> <code>openai/gpt-5.1-codex-mini</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>MCPs:</b> <code>websearch</code> <code>context7</code> <code>grep_app</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Skills:</b> none
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Capabilities:</b><br>
      Documentation lookup, GitHub code search, library research, best practice retrieval. <i>Read-only: they fetch wisdom; implementation is for others.</i>
    </td>
  </tr>
</table>

---

### 05. Designer: The Guardian of Aesthetics

<table>
  <tr>
    <td width="30%" align="center" valign="top">
      <img src="img/designer.png" width="240" style="border-radius: 10px;">
      <br><sub><i>Beauty is essential.</i></sub>
    </td>
    <td width="70%" valign="top">
      The Designer is an immortal guardian of beauty in a world that often forgets it matters. They have seen a million interfaces rise and fall, and they remember which ones were remembered and which were forgotten. They carry the sacred duty to ensure that every pixel serves a purpose, every animation tells a story, every interaction delights. Beauty is not optional - it's essential.
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Role:</b> <code>UI/UX implementation and visual excellence</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Prompt:</b> <a href="src/agents/designer.ts"><code>designer.ts</code></a>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Recommended Models:</b> <code>google/gemini-3-flash</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>MCPs:</b> none
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Skills:</b> <code>playwright</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Capabilities:</b><br>
      Modern responsive design, CSS/Tailwind mastery, micro-animations, component architecture. <i>Visual excellence over code perfection - beauty is the priority.</i>
    </td>
  </tr>
</table>

---

### 06. Fixer: The Last Builder

<table>
  <tr>
    <td width="30%" align="center" valign="top">
      <img src="img/fixer.png" width="240" style="border-radius: 10px;">
      <br><sub><i>The final step between vision and reality.</i></sub>
    </td>
    <td width="70%" valign="top">
      The Fixer is the last of a lineage of builders who once constructed the foundations of the digital world. When the age of planning and debating began, they remained - the ones who actually build. They carry the ancient knowledge of how to turn thought into thing, how to transform specification into implementation. They are the final step between vision and reality.
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Role:</b> <code>Fast implementation specialist</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Prompt:</b> <a href="src/agents/fixer.ts"><code>fixer.ts</code></a>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Recommended Models:</b> <code>cerebras/zai-glm-4.7</code> <code>google/gemini-3-flash</code> <code>openai/gpt-5.1-codex-mini</code>
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>MCPs:</b> none
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Skills:</b> none
    </td>
  </tr>
  <tr>
    <td colspan="2">
      <b>Capabilities:</b><br>
      Code implementation, refactoring, testing, verification. <i>Execute the plan - no research, no delegation, no planning.</i>
    </td>
  </tr>
</table>

---

## 🎚️ Presets

Presets are pre-configured agent model mappings for different provider combinations. The installer generates these automatically based on your available providers, and you can switch between them instantly.

### Switching Presets

**Method 1: Edit Config File**

Edit `~/.config/opencode/oh-my-opencode-slim.json` and change the `preset` field:

```json
{
  "preset": "openai"
}
```

**Method 2: Environment Variable**

Set the environment variable before running OpenCode:

```bash
export OH_MY_OPENCODE_SLIM_PRESET=openai
opencode
```

The environment variable takes precedence over the config file.


### OpenAI Preset

Uses OpenAI models exclusively:

```json
{
  "preset": "openai",
  "presets": {
    "openai": {
      "orchestrator": { "model": "openai/gpt-5.2-codex", "skills": ["*"], "mcps": ["websearch"] },
      "oracle": { "model": "openai/gpt-5.2-codex", "variant": "high", "skills": [], "mcps": [] },
      "librarian": { "model": "openai/gpt-5.1-codex-mini", "variant": "low", "skills": [], "mcps": ["websearch", "context7", "grep_app"] },
      "explorer": { "model": "openai/gpt-5.1-codex-mini", "variant": "low", "skills": [], "mcps": [] },
      "designer": { "model": "openai/gpt-5.1-codex-mini", "variant": "medium", "skills": ["playwright"], "mcps": [] },
      "fixer": { "model": "openai/gpt-5.1-codex-mini", "variant": "low", "skills": [], "mcps": [] }
    }
  }
}
```

### Antigravity via CLIProxy Preset

Routes through Antigravity's CLIProxy for Claude + Gemini models:

```json
{
  "preset": "cliproxy",
  "presets": {
    "cliproxy": {
      "orchestrator": { "model": "cliproxy/gemini-claude-opus-4-5-thinking", "skills": ["*"], "mcps": ["websearch"] },
      "oracle": { "model": "cliproxy/gemini-3-pro-preview", "variant": "high", "skills": [], "mcps": [] },
      "librarian": { "model": "cliproxy/gemini-3-flash-preview", "variant": "low", "skills": [], "mcps": ["websearch", "context7", "grep_app"] },
      "explorer": { "model": "cliproxy/gemini-3-flash-preview", "variant": "low", "skills": [], "mcps": [] },
      "designer": { "model": "cliproxy/gemini-3-flash-preview", "variant": "medium", "skills": ["playwright"], "mcps": [] },
      "fixer": { "model": "cliproxy/gemini-3-flash-preview", "variant": "low", "skills": [], "mcps": [] }
    }
  }
}
```

<details>
<summary>Verify provider configuration in ~/.config/opencode/opencode.json</summary>

```json
{
  "provider": {
    "cliproxy": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "CliProxy",
      "options": {
        "baseURL": "http://127.0.0.1:8317/v1",
        "apiKey": "your-api-key-1"
      },
      "models": {
        "gemini-3-pro-high": {
          "name": "Gemini 3 Pro High",
          "thinking": true,
          "attachment": true,
          "limit": { "context": 1048576, "output": 65535 },
          "modalities": { "input": [ "text", "image", "pdf" ], "output": [ "text" ] }
        },
        "gemini-3-flash-preview": {
          "name": "Gemini 3 Flash",
          "attachment": true,
          "limit": { "context": 1048576, "output": 65536 },
          "modalities": { "input": [ "text", "image", "pdf" ], "output": [ "text" ] }
        },
        "gemini-claude-opus-4-5-thinking": {
          "name": "Claude Opus 4.5 Thinking",
          "attachment": true,
          "limit": { "context": 200000, "output": 32000 },
          "modalities": { "input": [ "text", "image", "pdf" ], "output": [ "text" ] }
        },
        "gemini-claude-sonnet-4-5-thinking": {
          "name": "Claude Sonnet 4.5 Thinking",
          "attachment": true,
          "limit": { "context": 200000, "output": 32000 },
          "modalities": { "input": [ "text", "image", "pdf" ], "output": [ "text" ] }
        }
      }
    }
  }
}
```

</details>

### Author's Preset

Mixed setup combining multiple providers:

```json
{
  "preset": "alvin",
  "presets": {
    "alvin": {
      "orchestrator": { "model": "cliproxy/gemini-claude-opus-4-5-thinking", "skills": ["*"], "mcps": ["*"] },
      "oracle": { "model": "openai/gpt-5.2-codex", "variant": "high", "skills": [], "mcps": [] },
      "librarian": { "model": "cliproxy/gemini-3-flash-preview", "variant": "low", "skills": [], "mcps": ["websearch", "context7", "grep_app"] },
      "explorer": { "model": "cerebras/zai-glm-4.7", "variant": "low", "skills": [], "mcps": [] },
      "designer": { "model": "cliproxy/gemini-3-flash-preview", "variant": "medium", "skills": ["playwright"], "mcps": [] },
      "fixer": { "model": "cerebras/zai-glm-4.7", "variant": "low", "skills": [], "mcps": [] }
    }
  }
}
```

---

## 🧩 Skills

Skills are specialized capabilities that agents can use. Each agent has a default set of skills, which you can override in the agent config.

### Available Skills

| Skill | Description |
|-------|-------------|
| `simplify` | Code complexity analysis and YAGNI enforcement |
| `playwright` | Browser automation via Playwright MCP |

### Default Skill Assignments

| Agent | Default Skills |
|-------|----------------|
| `orchestrator` | `*` (all skills) |
| `designer` | `playwright` |
| `oracle` | none |
| `librarian` | none |
| `explorer` | none |
| `fixer` | none |

### Configuration & Syntax

You can customize which skills each agent uses by editing your plugin configuration file: `~/.config/opencode/oh-my-opencode-slim.json`.

**Syntax:**

| Syntax | Description | Example |
|--------|-------------|---------|
| `"*"` | All skills | `["*"]` |
| `"!item"` | Exclude specific skill | `["*", "!playwright"]` |
| Explicit list | Only listed skills | `["simplify", "playwright"]` |
| `"!*"` | Deny all skills | `["!*"]` |

**Rules:**
- `*` expands to all available skills
- `!item` excludes specific skills
- Conflicts (e.g., `["a", "!a"]`) → deny wins (principle of least privilege)
- Empty list `[]` → no skills allowed

**Example Configuration:**

```json
{
  "presets": {
    "my-preset": {
      "orchestrator": {
        "skills": ["*", "!playwright"]
      },
      "designer": {
        "skills": ["playwright", "simplify"]
      }
    }
  }
}
```

### Simplify

**The Minimalist's sacred truth: every line of code is a liability.**

Use after major refactors or before finalizing PRs. Identifies unnecessary complexity, challenges premature abstractions, estimates LOC reduction, and enforces minimalism.

### Playwright Integration

**Browser automation for visual verification and testing.**

- **Browser Automation**: Full Playwright capabilities (browsing, clicking, typing, scraping).
- **Screenshots**: Capture visual state of any web page.
- **Sandboxed Output**: Screenshots saved to session subdirectory (check tool output for path).

---

## 🔌 MCP Servers

Built-in Model Context Protocol servers (enabled by default):

| MCP | Purpose | URL |
|-----|---------|-----|
| `websearch` | Real-time web search via Exa AI | `https://mcp.exa.ai/mcp` |
| `context7` | Official library documentation | `https://mcp.context7.com/mcp` |
| `grep_app` | GitHub code search via grep.app | `https://mcp.grep.app` |

### MCP Permissions

Control which agents can access which MCP servers using per-agent allowlists:

| Agent | Default MCPs |
|-------|--------------|
| `orchestrator` | `websearch` |
| `designer` | none |
| `oracle` | none |
| `librarian` | `websearch`, `context7`, `grep_app` |
| `explorer` | none |
| `fixer` | none |

### Configuration & Syntax

You can configure MCP access in your plugin configuration file: `~/.config/opencode/oh-my-opencode-slim.json`.

**Per-Agent Permissions**

Control which agents can access which MCP servers using the `mcps` array in your preset. The syntax is the same as for skills:

| Syntax | Description | Example |
|--------|-------------|---------|
| `"*"` | All MCPs | `["*"]` |
| `"!item"` | Exclude specific MCP | `["*", "!context7"]` |
| Explicit list | Only listed MCPs | `["websearch", "context7"]` |
| `"!*"` | Deny all MCPs | `["!*"]` |

**Rules:**
- `*` expands to all available MCPs
- `!item` excludes specific MCPs
- Conflicts (e.g., `["a", "!a"]`) → deny wins
- Empty list `[]` → no MCPs allowed

**Example Configuration:**

```json
{
  "presets": {
    "my-preset": {
      "orchestrator": {
        "mcps": ["websearch"]
      },
      "librarian": {
        "mcps": ["websearch", "context7", "grep_app"]
      },
      "oracle": {
        "mcps": ["*", "!websearch"]
      }
    }
  }
}
```

**Global Disabling**

You can disable specific MCP servers globally by adding them to the `disabled_mcps` array at the root of your config object.

---

## 🛠️ Tools & Capabilities

### Tmux Integration

> ⚠️ **Temporary workaround:** Start OpenCode with `--port` to enable tmux integration. The port must match the `OPENCODE_PORT` environment variable (default: 4096). This is required until the upstream issue is resolved. [opencode#9099](https://github.com/anomalyco/opencode/issues/9099).

<img src="img/tmux.png" alt="Tmux Integration" width="800">

**Watch your agents work in real-time.** When the Orchestrator launches sub-agents or initiates background tasks, new tmux panes automatically spawn showing each agent's live progress. No more waiting in the dark.

#### Quick Setup

1. **Enable tmux integration** in `oh-my-opencode-slim.json` (see [Plugin Config](#plugin-config-oh-my-opencode-slimjson)).

  ```json
  {
    "tmux": {
      "enabled": true,
      "layout": "main-vertical",
      "main_pane_size": 60
    }
  }
  ```

2. **Run OpenCode inside tmux**:
    ```bash
    tmux
    opencode --port 4096
    ```

   Or use a custom port (must match `OPENCODE_PORT` env var):
    ```bash
    tmux
    export OPENCODE_PORT=5000
    opencode --port 5000
    ```

   This allows multiple OpenCode instances on different ports.


#### Layout Options

| Layout | Description |
|--------|-------------|
| `main-vertical` | Your session on the left (60%), agents stacked on the right |
| `main-horizontal` | Your session on top (60%), agents stacked below |
| `tiled` | All panes in equal-sized grid |
| `even-horizontal` | All panes side by side |
| `even-vertical` | All panes stacked vertically |

---

### Background Tasks

The plugin provides tools to manage asynchronous work:

| Tool | Description |
|------|-------------|
| `background_task` | Launch an agent in a new session (`sync=true` blocks, `sync=false` runs in background) |
| `background_output` | Fetch the result of a background task by ID |
| `background_cancel` | Abort running tasks |

---

### LSP Tools

Language Server Protocol integration for code intelligence:

| Tool | Description |
|------|-------------|
| `lsp_goto_definition` | Jump to symbol definition |
| `lsp_find_references` | Find all usages of a symbol across the workspace |
| `lsp_diagnostics` | Get errors/warnings from the language server |
| `lsp_rename` | Rename a symbol across all files |

> **Built-in LSP Servers:** OpenCode includes pre-configured LSP servers for 30+ languages (TypeScript, Python, Rust, Go, etc.). See the [official documentation](https://opencode.ai/docs/lsp/#built-in) for the full list and requirements.

---

### Code Search Tools

Fast code search and refactoring:

| Tool | Description |
|------|-------------|
| `grep` | Fast content search using ripgrep |
| `ast_grep_search` | AST-aware code pattern matching (25 languages) |
| `ast_grep_replace` | AST-aware code refactoring with dry-run support |

---

### Formatters

OpenCode automatically formats files after they're written or edited using language-specific formatters.

> **Built-in Formatters:** Includes support for Prettier, Biome, gofmt, rustfmt, ruff, and 20+ others. See the [official documentation](https://opencode.ai/docs/formatters/#built-in) for the complete list.

---

## ⚙️ Configuration

### Files You Edit

| File | Purpose |
|------|---------|
| `~/.config/opencode/opencode.json` | OpenCode core settings |
| `~/.config/opencode/oh-my-opencode-slim.json` | Plugin settings (agents, tmux, MCPs) |
| `.opencode/oh-my-opencode-slim.json` | Project-local plugin overrides (optional) |

---

### Prompt Overriding

You can customize agent prompts by creating markdown files in `~/.config/opencode/oh-my-opencode-slim/`:

| File | Purpose |
|------|---------|
| `{agent}.md` | Replaces the default prompt entirely |
| `{agent}_append.md` | Appends to the default prompt |

**Example:**

```
~/.config/opencode/oh-my-opencode-slim/
  ├── orchestrator.md          # Custom orchestrator prompt
  ├── orchestrator_append.md   # Append to default orchestrator prompt
  ├── explorer.md
  ├── explorer_append.md
  └── ...
```

**Usage:**

- Create `{agent}.md` to completely replace an agent's default prompt
- Create `{agent}_append.md` to add custom instructions to the default prompt
- Both files can exist simultaneously - the replacement takes precedence
- If neither file exists, the default prompt is used

This allows you to fine-tune agent behavior without modifying the source code.

---

### Plugin Config (`oh-my-opencode-slim.json`)

The installer generates this file based on your providers. You can manually customize it to mix and match models. See the [Presets](#️-presets) section for detailed configuration options.

#### Option Reference

| Option | Type | Default | Description |
|--------|------|---------|-------------|
| `preset` | string | - | Name of the preset to use (e.g., `"openai"`, `"cliproxy"`) |
| `presets` | object | - | Named preset configurations containing agent mappings |
| `presets.<name>.<agent>.model` | string | - | Model ID for the agent (e.g., `"google/claude-opus-4-5-thinking"`) |
| `presets.<name>.<agent>.temperature` | number | - | Temperature setting (0-2) for the agent |
| `presets.<name>.<agent>.variant` | string | - | Agent variant for reasoning effort (e.g., `"low"`, `"medium"`, `"high"`) |
| `presets.<name>.<agent>.skills` | string[] | - | Array of skill names the agent can use (`"*"` for all, `"!item"` to exclude) |
| `presets.<name>.<agent>.mcps` | string[] | - | Array of MCP names the agent can use (`"*"` for all, `"!item"` to exclude) |
| `tmux.enabled` | boolean | `false` | Enable tmux pane spawning for sub-agents |
| `tmux.layout` | string | `"main-vertical"` | Layout preset: `main-vertical`, `main-horizontal`, `tiled`, `even-horizontal`, `even-vertical` |
| `tmux.main_pane_size` | number | `60` | Main pane size as percentage (20-80) |
| `disabled_mcps` | string[] | `[]` | MCP server IDs to disable globally (e.g., `"websearch"`) |

> **Note:** Agent configuration should be defined within `presets`. The root-level `agents` field is deprecated.

---

## 🗑️ Uninstallation

1. **Remove the plugin from your OpenCode config**:

   Edit `~/.config/opencode/opencode.json` and remove `"oh-my-opencode-slim"` from the `plugin` array.

2. **Remove configuration files (optional)**:
   ```bash
   rm -f ~/.config/opencode/oh-my-opencode-slim.json
   rm -f .opencode/oh-my-opencode-slim.json
   ```

---

## 🙏 Credits

This is a slimmed-down fork of [oh-my-opencode](https://github.com/code-yeongyu/oh-my-opencode) by [@code-yeongyu](https://github.com/code-yeongyu).

---

## 📄 License

MIT
